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Finding the Fourth Proportional to 84,550.71, 126,827.12 and 25,382.94

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Solution

The fourth proportional to 84,550.71, 126,827.12 and 25,382.94 is: 38,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,550.71 : 126,827.12 = 25,382.94 : x
  2. Step 2: Convert to fraction form
    84,550.71/126,827.12 = 25,382.94/x
  3. Step 3: Cross multiply
    84,550.71x = 126,827.12 × 25,382.94
  4. Step 4: Simplify right side
    84,550.71x = 3,219,245,240.79
  5. Step 5: Solve for x
    x = 3,219,245,240.79/84,550.71
  6. Step 6: Final answer
    x = 38,074.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.